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authorDan Williams <dan.j.williams@intel.com>2018-04-09 10:50:17 -0700
committerDan Williams <dan.j.williams@intel.com>2018-04-09 10:50:17 -0700
commite13e75b86ef2f88e3a47d672dd4c52a293efb95b (patch)
tree2617aebd952d1aec09d323f6b2484b93f659e753 /drivers/md/dm-stripe.c
parent1ed41b5696ccc3ff40a1dee39fe14eff273faf82 (diff)
parent976431b02c2ef92ae3f8b6a7d699fc554025e118 (diff)
downloadlinux-e13e75b86ef2f88e3a47d672dd4c52a293efb95b.tar.bz2
Merge branch 'for-4.17/dax' into libnvdimm-for-next
Diffstat (limited to 'drivers/md/dm-stripe.c')
-rw-r--r--drivers/md/dm-stripe.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index b5e892149c54..ac2e8ee9d586 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -311,6 +311,7 @@ static int stripe_map(struct dm_target *ti, struct bio *bio)
return DM_MAPIO_REMAPPED;
}
+#if IS_ENABLED(CONFIG_DAX_DRIVER)
static long stripe_dax_direct_access(struct dm_target *ti, pgoff_t pgoff,
long nr_pages, void **kaddr, pfn_t *pfn)
{
@@ -351,6 +352,11 @@ static size_t stripe_dax_copy_from_iter(struct dm_target *ti, pgoff_t pgoff,
return dax_copy_from_iter(dax_dev, pgoff, addr, bytes, i);
}
+#else
+#define stripe_dax_direct_access NULL
+#define stripe_dax_copy_from_iter NULL
+#endif
+
/*
* Stripe status:
*